Sheriff's investigators have testified at a preliminary hearing that a woman found slain with her Marine husband in their Temecula home last October was bound, gagged, stripped of her clothing and sexually assaulted.
Testimony and photos also showed someone had spray-painted a racial epithet on a bathroom mirror and a wall upstairs.
The preliminary hearing will determine whether four Camp Pendleton Marines will stand trial for killing fellow Marine Sgt. Jan Pietrzak and his wife Quiana Jenkins-Pietrzak.
Lance Cpl. Emrys John, Lance Cpl. Tyrone Miller, Pvt. Kevin Cox and Lance Cpl. Kesaun Sykes pleaded not guilty to first-degree murder, robbery and rape in November.
Prosecutors plan to seek the death penalty for the men if they are convicted.